A Diagrammatic Approach for Visual Question Answering over Knowledge Graphs

In this demo we present a tool for visual question answering (QA) over the Wikidata knowledge graph based on diagrammatic representation and reasoning. The demo is built on top of the metaphacts platform with the Ontodia library embedded. In a user study, we demonstrate and evaluate the approach of diagrammatic question answering using questions from the QALD7 (Question Answering over Linked Data) benchmark for Wikidata. The effectiveness and limitations of the proposed approach are discussed in the evaluation and conclusions sections. In the demo session at ESWC, we plan to present our tool for visual QA and show its QA capabilities using incremental creation of diagrams.